Hy4 vs DeepSeek V4.1 Flash
Hy4 took 16 min 15 s and $0.15 at list price, DeepSeek V4.1 Flash took 9 min 16 s and $0.051 at list price. Hy4 took 1.8× as long and cost 3.1× as much.
Hy4
Tencent · $1.25/M out · 404 HN pts
DeepSeek V4.1 Flash
DeepSeek · $0.40/M out · 1,482 HN pts
Pelican
Generate an SVG of a pelican riding a bicycle
Watch
Draw a mechanical wristwatch that shows the current local time, with a sweeping seconds hand and a date window. Make it look expensive.
Landing
Build the landing page for Lumen Cycles, a Copenhagen workshop that builds custom cargo bikes to order. Make it look like a real brand you would trust with 4,000 euros.
Breakout
Make a Breakout game I can play right now with the keyboard or the mouse. Give it several levels, a score and some juice.
Logo
Design a logo for Night Heron, an independent bookshop that only opens after dark.
About
Write the opening of the About us page for Patchbay, a three-person studio in Rotterdam that repairs vintage synthesizers. About 150 words.
Patchbay is a three-person studio in Rotterdam repairing vintage synthesizers and the odd drum machine or piece of studio equipment. We look after instruments that have survived tours, basements, and years of silence in cupboards. Our task is not to make them new, but to make them dependable while keeping the character that made them worth saving.
Every repair starts with listening: to the fault, to the owner, and to the instrument itself. From there we diagnose carefully, solder cleanly, calibrate patiently, and replace parts only when necessary. Between us we bring electronics, restoration, design, and studio experience, which keeps the work practical, unhurried, and attentive to small details. We document what we find, source components with care, and explain the work in plain language. Some jobs take an afternoon; others become long conversations with forty-year-old circuits. In each case, the goal is simple: return the machine to the hands, recordings, and rooms where it belongs.
Patchbay is a three-person studio in Rotterdam dedicated to the care, repair, and resurrection of vintage synthesizers. We started in a small workshop near the Maas, surrounded by oscillators, patch cables, and service manuals, because these instruments deserve more than dusty shelves and hasty fixes. Between us, we have decades of experience in electronics, sound design, and restoration, but we approach every machine with the same curiosity: listen first, trace the signal, understand the history, then bring it back to life. Whether it's a crackly filter, a dead voice card, a drifting oscillator, or a power supply that needs rebuilding, we work carefully, honestly, and with respect for original character. We also advise on maintenance, calibrate tuning and envelopes, and source hard-to-find parts when possible. At Patchbay, repair isn't just about making sound again. It's about keeping these instruments making music for decades to come.
Specs and numbers
| Hy4 | DeepSeek V4.1 Flash | |
|---|---|---|
| Maker | Tencent | DeepSeek |
| Made in | China | China |
| Released | 4 Nov 2026 | 10 Sep 2026 |
| Price in, per M tokens | $0.417 | $0.022 |
| Price out, per M tokens | $1.25 | $0.40 |
| Context | 1,048,576 tokens | 1,048,576 tokens |
| Weights | open | open |
| Hacker News points | 404 | 1,482 |
| Time for the six prompts | 16 min 15 s | 9 min 16 s |
| List price of the six prompts | $0.15 | $0.051 |
DeepSeek V4.1 Flash was cheaper: $0.10 less at list price, and less on each of the 6 prompts. DeepSeek V4.1 Flash was faster: 6 min 59 s less in total, and faster on 4 of the 6 prompts.
In the recording, both Breakout games play.
Rebuild this screen experiment: Hy4's rebuild matched the screenshot at 79%; DeepSeek V4.1 Flash was not in it. Tea Garden experiment: Hy4's game passed 5 of 5 checks; DeepSeek V4.1 Flash was not in it.





